About Optics & Photonics TopicsOSA Publishing developed the Optics and Photonics Topics to help organize its diverse content more accurately by topic area. This topic browser contains over 2400 terms and is organized in a three-level hierarchy. Read more.

Topics can be refined further in the search results. The Topic facet will reveal the high-level topics associated with the articles returned in the search results.

Abstract

The nonlinear response and strong coupling of control channels in
micromachined membrane deformable mirror (MMDM) devices make it
difficult for one to control the MMDM to obtain the desired mirror
surface shapes. A closed-loop adaptive control algorithm is
developed for a continuous-surface MMDM used for aberration
compensation. The algorithm iteratively adjusts the control
voltages of all electrodes to reduce the variance of the optical wave
front measured with a Hartmann–Shack wave-front sensor. Zernike
polynomials are used to represent the mirror surface shape as well as
the optical wave front. An adaptive experimental system to
compensate for the wave-front aberrations of a model eye has been built
in which the developed adaptive mirror-control algorithm is used to
control a deformable mirror with 19 active channels. The
experimental results show that the algorithm can adaptively update
control voltages to generate an optimum continuous mirror surface
profile, compensating for the aberrations within the operating range of
the deformable mirror.

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.